Custom logout function not working

[eluser]RyanH[/eluser]
It would make sense if I wasn't setting it up correctly. I guess I'm confused if I need to use the MY_Controller and the auth files or not. I've been looking for working examples and I can't seem to find any that help me out. I really don't understand why I'm having so many issues with authentication and session in general, I haven't had this much trouble CI in the past with anything. I don't need the validation controller, I just want to be able to log someone in, log them out, and restrict what pages they can view unless they're logged in. Should be pretty simple, I would think.